Abstract: A toner container and an image forming apparatus are disclosed. The toner container includes a guiding member formed at a part surrounding a toner outlet to be protruded from a circumferential surface of the toner container for guiding an opening or closing operation of a shutter member in a circumferential direction of the toner container. The image forming apparatus includes an image forming apparatus main body. The image forming apparatus main body includes a main body side shutter for opening or closing a toner supplying opening to be connected to the toner outlet. When the shutter member is opened, an end surface of the guiding member pushes the main body side shutter together with the opening operation of the shutter member, and the toner supplying opening is opened and is connected to the toner outlet.

Abstract: A toner supplying device which supplies toners contained in a toner container to a developing device is disclosed. The toner supplying device includes a toner tank which stores the toners discharged from the toner container, a toner carrying section which carries the toners stored in the toner tank, a toner dropping route which causes the toners carried by the toner carrying section to drop into the developing device by toner's own weight, a control unit which controls an amount of the toners to flow into the toner dropping route from the toner carrying section, and a stirring member which stirs the toners staying at a region between the toner tank and the toner carrying section.

Abstract: An image forming apparatus includes a process cartridge with an image bearing member configured to bear an image on a surface thereof. A developing device is configured to develop the image formed on the image bearing member by using a developer accommodated in a chamber thereof. The developing device includes a developer bearing member configured to bear the developer on a surface thereof to transfer the developer to the image formed on the image bearing member. A conveying member is configured to agitate and convey the developer in the chamber to the developer bearing member. A regulating member held in contact with the developer brought up from the chamber onto the surface of the developing roller is configured to uniformly distribute the developer on the surface of the developer bearing member.

Abstract: An image forming apparatus is disclosed. The image forming apparatus includes a toner supplying device, a toner container, and a developing device. The toner supplying device supplies toners stored in the toner container to the developing device. The toner supplying device includes a toner tank which stores toners discharged from the toner container, a toner carrying section which carries the toners stored in the toner tank in an obliquely upward direction, and a toner dropping route which causes the toners carried by the toner carrying section to drop into the developing device by toner own weight. The toner carrying section controls an amount of the toners to flow into the toner dropping route.

Abstract: A process cartridge configured to be detachably mounted in an image forming apparatus. A second body member is mounted on a first body member so that at least one of the first and second body members moves between an opened position and a closed position. An auxiliary device is configured to be mounted on at least one of the first and second body members via an opened space formed after at least one of the first and second body members is moved to the opened position.

Abstract: An image forming apparatus includes a process cartridge with an image bearing member configured to bear an image on a surface thereof. A developing device is configured to develop the image formed on the image bearing member by using a developer accommodated in a chamber thereof. The developing device includes a developer bearing member configured to bear the developer on a surface thereof to transfer the developer to the image formed on the image bearing member. A conveying member is configured to agitate and convey the developer in the chamber to the developer bearing member. A first regulating member held in contact with the developer brought up from the chamber onto the surface of the developing roller is configured to uniformly distribute the developer on the surface of the developer bearing member.

Abstract: A process cartridge configured to be detachably mounted in an image forming apparatus. A second body member is mounted on a first body member so that at least one of the first and second body members moves between an opened position and a closed position. An auxiliary device is configured to be mounted on at least one of the first and second body members via an opened space formed after at least one of the first and second body members is moved to the opened position.

Abstract: A developing device including a developer containing magnetic toner grains and includes a main pole for development disposed in a sleeve. Flux density generated by the magnetic pole in a direction normal to the surface of the sleeve outside of the surface has an attenuation ratio of 50% or above. The toner grains have a weight mean grain size of 6.0 ?m to 8.0 ?m while the toner grains having grain sizes of 5 ?m and below occupy 40% to 80% of the entire developer. The toner grains have magnetization strength of 10 emu/g to 25 emu/g in a magnetic field of 5 kOe or magnetization strength of 7 emu/g to 20 emu/g in a magnetic field of 1 kOe. The toner grains reduce toner scattering and image defects despite that they are magnetic, thereby implementing ultrahigh resolution.

Abstract: A developing device developing a latent image on a latent image carrier with a developer, and including a casing having an opening facing the latent image carrier and a developer carrier. Also included is a magnetic field generating device including a first magnetic pole generating a magnetic field causing the developer to rise on the developer carrier in a form of a magnet brush in a developing region, and a second magnetic pole generating a magnetic field at a downstream side of the first magnetic pole in a rotating direction of the developer carrier. Further, a toner-scattering restraining device is provided on an end portion of the casing at the downstream side of the developing region, and a magnetic member provided on a side of the toner-scattering restraining device facing the latent image carrier. A peak of a magnetic flux density set by the second magnetic pole in its normal direction is located outside of the opening.

Abstract: An image forming apparatus of the present invention includes a developing device including a sleeve and a magnet roller fixedly accommodated in the sleeve. The magnet roller includes a main magnetic pole and an auxiliary magnetic pole adjoining it at a downstream side in the direction of rotation of the sleeve. A magnetic collection pole is positioned on the edge of an opening formed in a casing and facing a photoconductive drum. The collection pole forms a magnetic field that prevents a developer falling away from the sleeve from escaping the developing device via the opening.

Abstract: A developing device of the present invention uses a developer containing magnetic toner grains and includes a main pole for development disposed in a sleeve. Flux density generated by the magnetic pole in a direction normal to the surface of the sleeve outside of the surface has an attenuation ratio of 50% or above. The toner grains have a weight mean grain size of 6.0 &mgr;m to 8.0 &mgr;m while the toner grains having grain sizes of 5 &mgr;m and below occupy 40 number % to 80 number % of the entire developer. The toner grains have magnetization strength of 10 emu/g to 25 emu/g in a magnetic field of 5 kOe or magnetization strength of 7 emu/g to 20 emu/g in a magnetic field of 1 kOe. The toner grains reduce toner scattering and image defects despite that they are magnetic, thereby implementing ultrahigh resolution, image reproducibility.

Abstract: A developing device developing a latent image on a latent image carrier with a developer, and including a casing having an opening facing the latent image carrier and a developer carrier. Also included is a magnetic field generating device including a first magnetic pole generating a magnetic field causing the developer to rise on the developer carrier in a form of a magnet brush in a developing region, and a second magnetic pole generating a magnetic field at a downstream side of the first magnetic pole in a rotating direction of the developer carrier. Further, a toner-scattering restraining device is provided on an end portion of the casing at the downstream side of the developing region, and a magnetic member provided on a side of the toner-scattering restraining device facing the latent image carrier. A peak of a magnetic flux density set by the second magnetic pole in its normal direction is located outside of the opening.

Abstract: An image forming apparatus of the present invention includes a developing device including a sleeve and a magnet roller fixedly accommodated in the sleeve. The magnet roller includes a main magnetic pole and an auxiliary magnetic pole adjoining it at a downstream side in the direction of rotation of the sleeve. A magnetic collection pole is positioned on the edge of an opening formed in a casing and facing a photoconductive drum. The collection pole forms a magnetic field that prevents a developer flew away from the sleeve from flying out of the developing device via the opening.

Abstract: A transfer device includes a transfer member that forms a nip part between a rotary image carrier carrying an image and the transfer member and that transfers the image on the image carrier to a transfer material passing through the nip part. The transfer member has on the transfer surface thereof notches slanting relative to a direction perpendicular to the transfer surface. The transfer device further includes a pushing member to push the transfer member to the image carrier so as to oppose to a pushing force from the transfer material to the transfer member, and a driving force transmission device that transmits a driving force to the transfer member such that the transfer surface of the transfer member moves at a circumferential speed different from that of the image carrier.

Abstract: A sticking material for hemostasis has a flexible strip-shaped base member having a high recovery property, a main surface, and side edges extending in a first longitudinal direction. An adhesive layer is disposed on the main surface of the base member. A pad is disposed on the adhesive layer and extends in a second longitudinal direction substantially transverse to the first longitudinal direction such that a space is defined between the pad and each of the side edges of the base member. The pad is of a size sufficient to exert pressure at a puncture area including punctures of both a blood vessel and a skin surface. The pad has a slight elasticity and a hardness capable of securely exerting pressure on the punctures by a shrinking action of the base member when the base member is adhered to the skin surface while being stretched to secure the pad over the punctures.